Citizen Promaster x Eco-Drive ft. Profesional Ecozilla Men Diver Round 300m Water Resistant Watch BN1024-01Z BN1024 BN-1024Discover cutting-edge diving technology with the Citizen Promaster Eco-Drive Professional Diver 300m. This advanced watch features the E365 caliber, providing a 365-day power reserve. Designed for saturation diving, it includes a helium valve and 300m water resistance. Inspired by its predecessor, it showcases a glossy deep-sea dial and a durable, eco-friendly BENEBiOL bracelet, combining functionality with sustainability.Caliber Number / MovementE365 (solar Eco-Drive)Power Reserve / AccuracyApproximately 365 days when fully charged (+/-15 seconds per month)CrystalSapphire crystal (anti-reflective coating)LuminousLuminous on hands, indexes and bezelCase / Band MaterialStainless steel case with urethane rubber strapWater Resistance300m / 1,000ft diverCase SizeThickness: 16.0 mmDiameter: 46.0 mmOther SpecificationsCitizen Promaster x Eco-Drive ft. Profesional EcozillaUnidirectional rotating bezelScrew-down crownScrew case backDate displayInsufficient charge warning functionOvercharge prevention functionRegular timekeeping (analog display)